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A143446 as a simple table

na(n)
11
20
32
4-1
52
64
7-1
80
94
108
11-2
120
134
148
1516
16-1
17-2
180
198
2016
2132
22-2
23-2
240
258
2616
2732
2864
29-2
30-2
310
320
3316
3432
3564
36128
37-2
38-2
39-4
400
4116
4232
4364
44128
45256
46-1
47-4
48-4
490
500
5132
5264
53128
54256
55512
56-2
57-4
58-4
590
600
6132
6264
63128
64256
65512
661024
67-2
68-2
69-4
70-8
710
720
7364
74128
75256
76512
771024
782048

[1,0,2,-1,2,4,-1,0,4,8,-2,0,4,8,16,-1,-2,0,8,16,
 32,-2,-2,0,8,16,32,64,-2,-2,0,0,16,32,64,128,-2,
 -2,-4,0,16,32,64,128,256,-1,-4,-4,0,0,32,64,128,
 256,512,-2,-4,-4,0,0,32,64,128,256,512,1024,-2,-2,
 -4,-8,0,0,64,128,256,512,1024,2048]